Home / 1,579.41-2,178.74-1,075.11

Finding the Fourth Proportional to 1,579.41, 2,178.74 and 1,075.11

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Solution

The fourth proportional to 1,579.41, 2,178.74 and 1,075.11 is: 1,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.41 : 2,178.74 = 1,075.11 : x
  2. Step 2: Convert to fraction form
    1,579.41/2,178.74 = 1,075.11/x
  3. Step 3: Cross multiply
    1,579.41x = 2,178.74 × 1,075.11
  4. Step 4: Simplify right side
    1,579.41x = 2,342,379.79
  5. Step 5: Solve for x
    x = 2,342,379.79/1,579.41
  6. Step 6: Final answer
    x = 1,483.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.